1955 Alvis TC 21 vs. 1990 Pontiac Firebird
To start off, 1990 Pontiac Firebird is newer by 35 year(s). Which means there will be less support and parts availability for 1955 Alvis TC 21. In addition, the cost of maintenance, including insurance, on 1955 Alvis TC 21 would be higher. At 5,733 cc (8 cylinders), 1990 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1990 Pontiac Firebird (235 HP @ 4400 RPM) has 130 more horse power than 1955 Alvis TC 21. (105 HP @ 4000 RPM) In normal driving conditions, 1990 Pontiac Firebird should accelerate faster than 1955 Alvis TC 21.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1990 Pontiac Firebird (447 Nm @ 3200 RPM) has 226 more torque (in Nm) than 1955 Alvis TC 21. (221 Nm @ 2500 RPM). This means 1990 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1955 Alvis TC 21.
Compare all specifications:
| 1955 Alvis TC 21 | 1990 Pontiac Firebird | |
| Make | Alvis | Pontiac |
| Model | TC 21 | Firebird |
| Year Released | 1955 | 1990 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 5733 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 105 HP | 235 HP |
| Engine RPM | 4000 RPM | 4400 RPM |
| Torque | 221 Nm | 447 Nm |
| Torque RPM | 2500 RPM | 3200 RPM |
| Engine Bore Size | 84 mm | 101.6 mm |
| Engine Stroke Size | 90 mm | 88.4 mm |
| Engine Compression Ratio | 8.0:1 | 8.5:1 |
| Top Speed | 164 km/hour | 209 km/hour |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Length | 4810 mm | 4840 mm |
| Vehicle Width | 1680 mm | 1850 mm |
| Vehicle Height | 1590 mm | 1270 mm |
| Wheelbase Size | 2840 mm | 2570 mm |
